Finding the Fourth Proportional to 2,019,928,478.14, 3,030,181,883.52 and 621,030,211.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019,928,478.14 : 3,030,181,883.52 = 621,030,211.12 : x
2. Step 2: Convert to fraction form
   2,019,928,478.14/3,030,181,883.52 = 621,030,211.12/x
3. Step 3: Cross multiply
   2,019,928,478.14x = 3,030,181,883.52 × 621,030,211.12
4. Step 4: Simplify right side
   2,019,928,478.14x = 1,881,834,494,854,424,832
5. Step 5: Solve for x
   x = 1,881,834,494,854,424,832/2,019,928,478.14
6. Step 6: Final answer
   x = 931,634,221.32